Wardani, Erika Martining, et al. “The Influence of Social Media About Covid-19 on Handwashing Behavior, Mask Wearing and Physical Distancing of Indonesian Students”. STRADA : Jurnal Ilmiah Kesehatan, vol. 9, no. 2, Nov. 2020, pp. 1338-45, doi:10.30994/sjik.v9i2.459.